*{
	box-sizing: border-box;
	-moz-box-sizing: border-box; /* Firefox */
	-webkit-box-sizing: border-box; /* Safari */
}
html{
	font-size: 20px;
}
html,body{
	height: 100%;
}
body{
	margin: 0;
	padding: 0;
	overflow: hidden;
	background-color: #fcfcfc;
}
.game{
	position: relative;
	margin: 0 auto;
	width: 51.2rem;
	height: 38.4rem;
	background-color: black;
	-moz-user-select:none;/*火狐*/
	-webkit-user-select:none;/*webkit浏览器*/
	-ms-user-select:none;/*IE10*/
	-khtml-user-select:none;/*早期浏览器*/
	user-select:none;
}
.game .page{
	position: relative;
	width: 100%;
	height: 100%;
}
.game .page>.layer{
	position: absolute;
	left: 0;
	top: 0;
	right: 0;
	bottom: 0;
	width: 100%;
	height: 100%;
}
.game .page>.area{
	position: absolute;
}
.game .page>.btn{
	position: absolute;
}

.preload{
	display: none;
}